Magazine photographic-plate holder



2 Sheets-Sheet 2.

(No Modell.)

T. S. WILES. MAGAZINE PHOTOGRAPHIE PLATE EOLEEE.

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` UNITED STATES PATENT OEEICE.

vTHOMAS S. VILES, OF ALBANY, NE\V YORK.

MAGAZINE PHOTOGRAPHlC-PLATE HOLDER.

SPECIFICATION forming part of Letters Patent No. 424,396, dated March 25, 1890. .Application filed December 2l, 1888. Serial 110,294,270. (No model.)

To all whom t may concern:

Be it known that I, THOMAS SJXVILES, a citizen of the United States, residing at Albany, in the county of Albany, State of New York, have invented certain new and useful Improvements in Magazine Photographic- Plate Holders, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention has relation to magazine plate-holders for photographic cameras; and among the objects ofthe invention are to provide a magazine comprising two compartments-one for the storage and automatic presentation of successive plates of a series for exposure and the other to receive and store plates after exposure, means being also provided for the transfer of plates from the former to the latter compartment.

Other obj ects and advantages of the invention will appear in the following description, and the novel features will be particularly pointed out in the claims.

Referring to the drawings, Figure l is a central longitudinal section of a magazine constructed in accordance with my invention, the section being taken on the line Qc of Fig. 2. Fig. 2 is a backview of the magazine. Fig. 3 is a plan. Fig. 4 is a transverse section of one-half of the magazine, (no plates being shown therein,) the section being on the line y of Fig. l; and Fig. 5 is a fronthalf of the magazine.

Like letters of reference indicate like parts in all the figures of the drawings.

For clear-ness in description that side of the magazine which is placed against the rear end of the camera is denominated the front and the opposite side the backf The body of the magazine consists of a frame A, the front B of which has an opening B approximately agreeing inarea with the focusing-screen of the camera in connection with which the magazine is to be used. The front adjacent to the opening B is rabbeted, as at B2, to fit into the camera like any ordinary plate-holder. A slide G is provided to close the opening B and serve as a platetransferring device, as hereinafter described.

A septum D separates the main body or frame of the magazine into two compartments F. and F. This septum comprises two plates D', of thin wood or other suitable material, between which a felt, cloth, or other shutter or light-excluding device D2 is arranged. ln this instance the material is folded upon itself, with its folded edge proj ecting into the path of the slide C. Above and below the plates D are placed metal plates D3. Between the plates D there is inserted a T-shaped bar D, of metal, which extends from side to side and is secured in position by screws or rivets D5, which serve also to bind the plates D DS and shutter D2 in position. The wooden plates D extend less than the whole distance between the front and back of the magazine, so as to form a chamber D, in which the folded end of the light check or shutter D2 may operate, so as to close the opening for the slide whenever the latter is withdrawn. The bar D4 is in this instance secured to the frame by screws DX. (See Fig. 2.) Any suitable light check may be arranged in chambers or offsets B3, formed at the tcp of the magazine, through which offsets the slide C passes, so as to prevent access of light at that point.

The frame A is rabbeted at its back edge all around, as shown at A, and this feature of construction, in connection with the T- shaped bar D4, adapts the back to receive doors G and G for the upper and lower ceinpartments F. and F, respectively, said doers being rabbeted or otherwise adapted to it the rabbet of the frame. It is evident that the doors G G may be hinged to lthe magazine. Each door is recessed, as at G2, and a latch G3 is pivoted within said recess, and is capable of being swung under a plate H, secured to the frame A and projecting over a similar recess H', formed in the frame. By this construction the latch may be turned out of contact with the plate H, as indicated by dotted lines in Fig. 2, and the door swung away from the frame at one edge and withdrawn from under the metal bar D'l at the opposite edge, thereby giving access to the compartment closed by the door.

I represents followers, one of which is arranged in each chamber, and each consists, essentially, of a plate I', of suitable material, recessed, as shown, for the reception of the terminal coil of a spring J, which is attached to or may simply bear against the inner sur- IOO face of the door. The follower I of the upper compartment is slightly beveled at its top, as at I3, to permit the entrance of the slide when all the plates have been transferred to the lower compartment.

K represents a series of photographic plates in the exposi11g-compartment, and K a series of plates arranged after exposure in the receiving-compartment of the magazine. rlhe outer edge of the slide C is provided with a metal binding C', secured by rivets C2, and upon this binding is secured a thumb-piece or handle C3, which serves to facilitate the operation of withdrawing the slide. The lower edge of the slide is formed with a projection CL1 (sce Fig. 4) at opposite corners thereof, and the inner surfaces of the side walls ofthe frame A are grooved, as at A2, to a sufficient depth to receive the slide and its projections. A metal plate L (see Figs. l and 4) is arranged to project partially over the upper end of the groove A2, so as to prevent the complete withdrawal of the slide.

The inner surface of the front B in the upper compartment is coincident with the plane of exposure, while the inner surface of the front of the receiving-eompartment is somewhat in front of said plane and has at its lateral edges guides B4, (appearing in side elevation in Fig. 1,) the surfaces of which are in part coincident and in part inclined to said plane of exposure, as at BM. The inclination begins at apoint below the septum to provide a guiding-surface in the path of the slide,and terminates at the inner surface of the front and at its lower edge. The inclined portions of the guides cause the follower I and all the plates in said receiving-compartir]ent to assume an inclined position, with their upper ends toward the back, thereby leaving an .unoccupied space at the upper front of said compartment and immediately under the lower edge and in the path of the slide C. The object of this construction is to insure the entrance of the front plate of the series in the upper compartment in front of the follower, or any plate or plates in the lower compartment when it is desired to transfer a plate from one compartment to the other. Various constructions to attain this object will suggest themselves to persons skilled in the art. For example, the guides, instead of being limited to the lateral edges of the front wall, may be extended entirely across the same.

B1 indicates by dotted lines a spring' arranged as an equivalent construction. It is secured to the front B below the septum, and its free end projects into the path of the slide C, so as to remove the upper end of the follower and any plate or plates from said path, and thus form the unoccupied space M. In this ease the inner surface of the front wall of the lower compartment may be in line with the front wall of the upper compartment. )Vith this construction the inclination in part or in whole of the wall is unnecessary. In the one case the inclined guides are xed and in the other they are yielding, and in both eases points of resistance to the pressure 'of the 'follower are provided, which so disposes the same or plates thereagainst as to produce t-he desired unoccupied space.

N is a corner-plate secured at the top of the frame, and by means of screws N may assist in binding the back and body of the magazine together, and it also presents a metallic surface, against which the head of the slide abuts when it is closed.

In order to insure a smooth movement of the slide C, I have provided devices which control it when being entered or withdrawn in such a manner that one edge shall not advance faster than the other, and therefore cannot bind in the grooves A2 of its receiving-frame A. Ordinarily, in plate-holders unprovided with slide-controlling devices, if the force used to enter or withdraw a slide is not applied in a right line in the direction of ihe desired movement of the slide, the latter is diverted laterally from its normal path and caused to bind at its opposite edges, and in correcting this divergence in one direction liability exists in causing a like divergence in an opposite direction, and the result is a hitching or jerky movement of the slide, which displaces the camera from a previous adjustment and necessitates a .repetition of focusing. By my invention ,this difficulty is overcome.

Referring' to Figs. l and 2, O O2 O3 O" represent links pivoted at one end to a connectingbar O5. At the opposite end the links O and O3 are pivoted to the slide-as, for example, as at O O-while the ends of the links O2 OA1 are pivoted to a fixed part-for example, on the frame O7. The inner ends of the links may be square, as shown at O8, so as to abut against each other and act as a stop against further movement when the links of each pair are brought in line with each other. The plate O5 may be extended beyond its link-pivots, as clearly shown, and its ends may then serve as means for opening or closing the links. The links may be pivoted to either or bot-h surfaces of the connecting-bar. By this example of a slide-controlling device it will be seen that when force is applied to enter or withdraw the slide said force is caused to act in a direct line with the normal path of the slide and a smooth movement of the latter is assured.

This being the construction, the operation is as follows: After the operation of focusing, the magazine, having a series of plates in its upper compartment, is applied to a camera. The slide is now withdrawn and the series of plates is *advanced by the spring-follower a distance equal to the thickness of the slide, thus bringing the front plate of the series into the same vertical plane as the slide and against the exposure-opening B. The plate is exposed, and the cap or shutter of the cam era is then closed and the slide forced in, carrying before it the exposed plate, which is lOO IOS

IIO

caused to pass the shutter D2, into the space M in front of the follower, or in front of any plate or plates in the lower compartment, until said exposed plate is wholly within the lower compartment, the follower by means of the spring .I yielding to make-room for the exposed plate. As soon as the exposed plate and the loweredge of the slide passes below the upper surface of the septum D, a fresh plate is, by the spring .I and follower` I of the `uppercompartment, brought against the slide,

and when the latter is withdrawn for exposure said spring and follower forces the plate into the position occupied bythe slide. The thickness of the front is such as to bring a plate in the upper compartment inthe same plane as that occupied by the focusing-screen. The follower I, being slightly beveled at the top, permits the entrance of the slide after all the plates have been exposed and transferred to the lower compartment.

For the purpose of close packing for transportation or storage, the magazine is provided with a hing@ Q, (see dotted lines, Fig. 1,) the magazine being separated on the line Q', and any suitable fastening being also used to lock the parts in operative position.

I am aware that a plate-holder adapted to hold and expose only a single plate has been hinged to a storing-chamber; butin such case a light-proof bag was used to transfer plates from the holder to the storing-chamber. In my invention the receiving-chamber communicates in a light-proof manner with the part serving the function of a plate-holder.

Having described my invention and its operation, what I claim isl. A magazine plate-holder of the class described, having the lateral margins of the inner front wall of its receiviiig-compartment inclined, substantially as specified.

2. A magazine plate-holder of the class described, having two compartments, the inner surface of the front walls of one compartment lying in the plane of exposure and the other compartment having inclined guides on the lateral margins of the inner surface of its front wall, substantially as specified.

3. A magazine plate-holder of the class described, having two compartments, the inner surface of 'the front walls of one coinpartment lying in the plane of exposure and the other compartment having fixed inclined guides on the lateral margins of the inner surface of the front wall, substantially as specilied.

4:. A magazine plate-holder of the class described, coinprising two compartments, one of which is provided with an exposure-opening and with a slide for closing said opening, and the other compartment of which is provided with a front wall, the lat-eral margins of the inner surface of which are provided with guides inclined with relation to the inner surface of the front of the first-mentioned compartment, substantially as specified.

5. A magazine plate-holder of the class described, comprising a septum dividing the inaga-zine into two conipartm ents and having a shutter arranged thereat, and a slide for closing the exposure-opening of the upper compartment and projecting across the septum, the compartment beyond the septum having inclined guides, substantially as specified.

6. In a magazine plate-holder of the class described, a septum comprising separate plates and a shutter made of fabric inserted between the plates, substaiitiall y as specified.

7. A magazine plate-holder of the class described, comprising` a septum of separate plates and a T-bar secured tliereinbetween, and forming a groove for the reception of a door, substantially as specified.

S. A magazine plate-holder of the class described, comprising a septum formed of plates and interposed fabric constituting a shutter,

metal plates projecting to form a chamber for the shut-ter, and a T-bar, substantially as specified.

9. The combination, with the slide and its receiving-frame, of links and a connectingbar, substantially as specified,

l0. The combination, with a slide and its receiving-frame, of links having square inner ends and a coiinecting-bar, substantially as specified.

ll. The combination, with a slide and its receiving-frame, of links having square ends and a connecting-bar extending beyond its link-pivots, substantially as specified.

12. A magazine plate-holder having its exposing-chamber and its light-proof communicating receivin g-chamber joined by a hinge, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesse.

THOMAS s. wiLEs.

Vitnesses:

DELAVAN Puck, JOHN W. ULINE.

ICO 

